# Atmel EDBG-based Tools Protocols
Serial trace commands

### Get buffer size

Reads out the buffer size available on the hardware.

Table 25. Get buffer size

Field | Size | Description
--- | --- | ---
SERIAL_TRACE | 1 byte | 0x87
GET_BUFFER_SIZE | 1 byte | 0x0A

Response:

Table 26. Get buffer size response

Field | Size | Description
--- | --- | ---
SERIAL_TRACE | 1 byte | 0x87
GET_BUFFER_SIZE | 1 byte | 0x0A
Buffer size | 4 bytes, MSB first | Total size of receive buffer

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